Here is the quote from the representative of the haunted house:
“We have robust safety and security protocols in place, including metal detectors and onsite medical and security staffs,” Nashville Nightmare said. “We are going over all of our safety protocols with all of our staff again, as the safety and security of all of our patrons is always our main concern. We have not been contacted by the police, but we will cooperate fully with any official investigation.”

So I guess that one performer didn't get the memo???? Oh, and were the onsite medical and security staff members present to assist after the event?